Strange output

General Usage
1

image
image656×684 37.1 KB

using Primes

function Triangle(n)
return sum(1:n)
end

num=1
temp=3
while num<500

A=collect(factor(Triangle(temp)))
if prod(i->A[i][2]+1, 1:length(A) )<500
    temp+=1
else
    num=5000
    ans=Triangle(temp)
end

end
print(ans," " ,Triangle(temp))

I’m puzzled by why ans gives nothing, while its expected to be 76576500. Any explanation will be greatly appreciated.

2

I figured it out.
ans is probably one of the keywords in Julia.
So use a different name solves the problem.
image

3

You can bring up help about ans by typing ?ans:

help?> ans
search: ans transpose transcode expanduser instances MathConstants readlines

  ans

  A variable referring to the last computed value, automatically set at the
  interactive prompt.
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